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331 Hemi, oil on plugs?
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   Forward Look Technical Discussions -> Engine, Exhaust, Fuel and IgnitionMessage format
 
1955NYer
Posted 2020-11-29 10:38 PM (#606187)
Subject: 331 Hemi, oil on plugs?


Member

Posts: 18

Hey everyone,

I was changing my spark plugs and there was oil on the plugs, not where the spark itself happens, but around the rest of it and around where I removed them. Oil on all 8. Is this normal? Never had any oil around the plugs before, then again this is my first time messing around with a vehicle this old.
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58coupe
Posted 2020-11-30 1:10 AM (#606190 - in reply to #606187)
Subject: Re: 331 Hemi, oil on plugs?



Expert

Posts: 1501
1000500
Location: Alaska
That brings up several questions . How much do you drive and is it using oil? Oil on the plugs means it is burning oil which can come from worn rings or valve guides most likely.
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1955NYer
Posted 2020-11-30 7:28 AM (#606191 - in reply to #606187)
Subject: Re: 331 Hemi, oil on plugs?


Member

Posts: 18

It is driving zero. I run it for 5 minutes every other day.
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Powerflite
Posted 2020-11-30 7:55 AM (#606192 - in reply to #606187)
Subject: Re: 331 Hemi, oil on plugs?



Expert 5K+

Posts: 7127
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Location: So. California
Completely normal for a hemi motor. There is oil that collects around the tubes and when you remove the plugs, that oil is released onto the plug as you pull it out. Hot Heads sells tube seals that will prevent this from happening, but you have to machine your heads to press fit them into it.
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wizard
Posted 2020-11-30 10:47 AM (#606193 - in reply to #606187)
Subject: Re: 331 Hemi, oil on plugs?



Board Moderator & Exner Expert 10K+

Posts: 12405
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Location: Southern Sweden - Sturkö island
That's what I thought as well, the tubes are held in place by the spark plugs. I noticed the same on a Hemi engine I was working on.....
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57chizler
Posted 2020-11-30 12:59 PM (#606196 - in reply to #606187)
Subject: RE: 331 Hemi, oil on plugs?



Expert

Posts: 3481
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Location: NorCal
They make these to solve that problem but they've never worked for me.

https://www.jegs.com/i/Milodon/697/27050/10002/-1?gclid=EAIaIQobChMI...
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1955NYer
Posted 2020-12-01 12:36 AM (#606206 - in reply to #606187)
Subject: Re: 331 Hemi, oil on plugs?


Member

Posts: 18

Awesome. Thank you for the detail. I appreciate it!
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